We fixed a bug where custom logo files lead to a failure, when they are not uploaded via "Site Logo and Favicon" (for the global logo) or "Default Space Logo"
Fixed a bug where mail delivery used the default mail server instead of the configured one
Fixed a bug which caused the Plugin to crash on a Windows server, when using a custom logo
Fixed another bug where quadratic images won't be scaled
Added the capability to embed images with the CID (Content ID) format in emails
Added base64 encoding of images, rather than just linking to your Confluence
This means, recipients don't need to be users of your Confluence in order to see the images in the email anymore
Optional scaling of images to a user defined value has been added to reduce mail size
HTML template for emails now supports Confluence specific rendering of tables, labels and some other components
HTML template now has a header bar with your Confluence - or Space logo and main color to represent your Confluence's look and feel